PVC Insulated Flame Retardant Mining Power Cable

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Product Description

                                                                                     PVC Insulated Flame Retardant Mining Power Cable


Application:

Cables are applicable to transmit electric energy for colliery equipment with AC rated voltage up to 6kV. Coal mines are high-risk, high-intensity working environments, requiring power cables to have excellent durability, pressure resistance and stability. PVC insulated power cables for coal mines, including four models: MVV, MVV22, MVV32, MVV42 are specially designed for mine power transmission systems and can operate stably for a long time in harsh environments such as humidity, dust and mechanical shock, ensuring the safety and efficiency of mine operations.

 

Manufacturing standard:

MT 818.12

 

Service Property Parameter

1. Max.Permitted continuous operating temperature of conductor is 70℃.

2. Upon short circuit(max duration time 5s).the Max.temperature of conductor not higher than 160℃.

3. Ambient temperature of installation not less than 0℃.

4. Preferred permissible bending radius not less than 15 times of cable diameter.

 

Type & Description

Type

Description

MVV

PVC insulated PVC sheathed flame retardant mining power cable

MVV22

PVC insulated steel tape armored PVC sheathed flame retardant mining power cable

MVV32

PVC insulated thin steel wire armored PVC sheathed flame retardant mining power cable

MVV42

PVC insulated thick steel wire armored PVC sheathed flame retardant mining power cable

 

                   

 

 

 

Applicable scenarios and application environments

MVV cable: widely used in coal mines, tunnels, mines and other environments, used in power transmission lines, suitable for fixed laying environments without external forces.

MVV22 cable: based on MVV, steel belt armor is added, suitable for coal mines, tunnels, mines and other environments, can withstand certain mechanical external forces, suitable for use in places with more mechanical equipment and slightly harsh environments.

MVV32 cable: with steel wire armor, suitable for deep well mining, mine bottom and other environments that need to withstand large tension and external pressure, can effectively prevent cable damage under extreme conditions such as rock squeezing and collision, and ensure stable operation of the power system.
 

Main Technical Indexes

1. D.C.resistance of conductor shall comply with GB/T3956.

2. Cables with rated voltage above 3.6kV shall be applied for parital discharge test,the magnitude of the discharge at 1.5U0 shall not exceed 40pC.

3. Cables with rated voltage up to 3.6kV shall withstand 2.5U0+2kV voltage test; cables with rated voltage above 3.6kV shall with stand 2.5U +2kV voltage test; cables with rated voltage above 3.6kV shall withstand 2.5U0  voltage test.

4.Flame retardant performance: conform to MT386.

Technical Data:

                                                                                                                                               MVV Cable

Number of cores

Conductor Diameter
(mm)

Conductor cross section
 (mm2)

Insulation Thickness
 (mm)

Resistance
(Ω/km)

Sheath Thickness
(mm)

Cable outer diameter
(mm)

weight
(kg/km)

Current
(A)

Three cores

1.8

2.5

0.8

7.41

1.8

11.8

187

29/19

 

2.3

4

1

4.61

1.8

13.7

265

38/26

 

2.8

6

1

3.08

1.8

15.7

380

47/32

 

3.8

10

1

1.83

1.8

17.6

514

65/46

 

4.8

16

1

1.15

1.8

19.8

728

84/60

 

6

25

1.2

0.727

1.8

23.6

1084

110/77

 

7

35

1.2

0.524

1.8

26.1

1422

130/95

 

8.3

50

1.4

0.387

1.8

26.5

1801

155/115

 

9.8

70

1.4

0.268

1.9

28.8

2415

195/145

 

11.5

95

1.6

0.193

2.1

33.7

3255

230/185

 

12.9

120

1.6

0.153

2.2

37.1

4037

260/210

 

14.5

150

1.8

0.124

2.3

41.9

5028

300/245

 

16

185

2

0.0991

2.5

45.9

6180

335/280

 

18.3

240

2.2

0.0754

2.7

51.7

7947

390/335

 

20.5

300

2.4

0.0601

/

/

/

/


                                                                                                                                             MVV22 Cable

Number of cores

Conductor Diameter
(mm)

Conductor cross section
 (mm2)

Insulation Thickness
 (mm)

Resistance
(Ω/km)

Sheath Thickness
 (mm)

Strip Thickness
 (mm)

Cable Outer Diameter
 (mm)

weight
 (kg/km)

Current
 (A)

Three cores

1.8

2.5

0.8

7.41

/

/

/

/

/

 

2.3

4

1

4.61

1.8

0.2×2

17.3

489

38/26

 

2.8

6

1

3.08

1.8

0.2×2

18.4

577

47/32

 

3.8

10

1

1.83

1.8

0.2×2

21.2

800

65/46

 

4.8

16

1

1.15

1.8

0.2×2

23.5

1050

84/60

 

6

25

1.2

0.727

1.8

0.2×2

27.2

1465

110/77

 

7

35

1.2

0.524

1.9

0.2×2

30.7

2150

130/95

 

8.3

50

1.4

0.387

2

0.5×2

31.4

2453

155/115

 

9.8

70

1.4

0.268

2.2

0.5×2

33.6

3116

195/145

 

11.5

95

1.6

0.193

2.4

0.5×2

38.2

4053

230/185

 

12.9

120

1.6

0.153

2.5

0.5×2

41.9

4930

260/210

 

14.5

150

1.8

0.124

2.6

0.5×2

47.1

6075

300/245

 

16

185

2

0.0991

2.8

0.5×2

50.9

7300

335/280

 

18.3

240

2.2

0.0754

3

0.5×2

57

9231

390/335

 

20.5

300

2.4

0.0601

3.2

0.5×2

61.8

11277

435/375


                                                                                                                                        MVV32 Cable

Number of cores

Conductor Diameter
(mm)

Conductor cross section
 (mm2)

Insulation Thickness
 (mm)

Resistance
(Ω/km)

Sheath Thickness
(mm)

Wire Diameter
 (mm)

Cable Outer Diameter
(mm)

weight
 (kg/km)

Current
(A)

Three cores

1.8

2.5

0.8

7.41

/

/

/

/

/

 

2.3

4

1

4.61

/

/

/

/

/

 

2.8

6

1

3.08

/

/

/

/

/

 

3.8

10

1

1.83

1.8

0.8

23

1172

65/46

 

4.8

16

1

1.15

1.8

0.8

25.3

1457

84/60

 

6

25

1.2

0.727

1.8

1.6

29

1936

110/77

 

7

35

1.2

0.524

1.9

1.6

31.7

2359

130/95

 

8.3

50

1.4

0.387

2

1.6

36.4

3216

155/115

 

9.8

70

1.4

0.268

2.2

2

41.1

4164

195/145

 

11.5

95

1.6

0.193

2.4

2

47.4

5498

230/185

 

12.9

120

1.6

0.153

2.5

2

51.3

6836

260/210

 

14.5

150

1.8

0.124

2.6

2.5

55.9

8061

300/245

 

16

185

2

0.0991

2.8

2.5

61.4

9640

335/280

 

18.3

240

2.2

0.0754

3

2.5

68.5

12002

390/335

 

20.5

300

2.4

0.0601

3.2

2.5

75.2

14489

435/375

 

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